On a canal or river, a lock is a place where walls have been built with gates at each end so that boats can move
to a higher or lower section of the canal or river, by gradually changing the water level inside the gates.

6. countable noun

A lockof hair is a small bunch of hairs on your head that grow together and curl or curve in the same direction.

Example sentences containing 'lock'

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Scarlets ended with a back having to replace a lock. Times, Sunday Times (2016)We went into the aquarium and they locked the doors. Times, Sunday Times (2016)He kept two prisoner for long periods by locking them in bedrooms. The Sun (2017)Companies that have locked down systems configurations in the past will find this process easier. Computing (2010)This time they need to be under lock and key. The Sun (2016)The 18billioncost of building will lock us into what looks like highly expensiveelectricity for decades. Times, Sunday Times (2016)If the wheels lock, the car will slide. The Sun (2017)If you go alpine skiing your boots lock you into position and you can't move. Times, Sunday Times (2016)The makerssay no: once people arrive at their row they can lock the seats back into place. Times, Sunday Times (2017)The church building would be locked and the offices closed. Christianity Today (2000)They then locked the doors and went to bed.Max Arthur Lost Voices of the Edwardians: 19011910 in the words of the Men & Women Who Were
There (2006)When the two get locked in a car boot things get hot. The Sun (2013)Too many angels have ended up locked into illiquidinvestments in the past. Times, Sunday Times (2013)This lowers the whole car still further and locks the big back wing down. Times, Sunday Times (2013)You therefore need to be careful about how long you lock your money away for. Times, Sunday Times (2009)They were immensely knowledgeable about the system and the system locked them into poverty. Times, Sunday Times (2013)Usually a lock of hair is asked for.Mumby, Keith The Allergy Handbook (1988)What a shame she now prefers eating brains to locking lips. The Sun (2012)You had a key and you locked the door.Stanko, Elizabeth Everyday Violence (1990)We have become locked into doing process and utterlyrubbish at doing humanity. Times, Sunday Times (2010)They are free to be moved and locked at any position along the beam.Chapman, C. & Horsley, M. & Small, E. Technology Basic Facts (1990)We have also been working it into the scalp to make our locks grow extralush. The Sun (2014)Last night he was locked in talks over the move. The Sun (2009)But the building was locked and there was not a teacher in sight. Times, Sunday Times (2010)The front door was open but the three inside doors were locked. Times, Sunday Times (2007)The car was locked and the small bags were hidden underneath the driver and front passenger seat. Times, Sunday Times (2013)These two natural entertainers ended up locked in a classic. Times, Sunday Times (2013)The conundrum at lock and back row is hard. Times, Sunday Times (2015)Derry has also chopped off his famous long locks. The Sun (2006)It automatically closes the windows and fresh air vents and engages the central locking system. Times, Sunday Times (2013)It also fully protects your tablet from damage in an accident as it's locked firmly in place. The Sun (2016)The door was flung to behind them, and they heard it locked and bolted and barred against them.George MacDonald The Princess and the Curdie (1883)SHE opts for her fave designer again, first with headgear and then with signaturewavy locks. The Sun (2015)